onsemi NCV7344A3V1GEVB CAN(FD) Transceiver Evaluation Board User Manual
- June 16, 2024
- onsemi
Table of Contents
onsemi NCV7344A3V1GEVB CAN(FD) Transceiver Evaluation Board
Specifications
- Product Name: NCV7344A3V1GEVB
- Package: SOIC8
- Supported CAN Transceivers: Wide range of transceivers
- Battery Supply Voltage: -40V to 40V
- Transceiver Supply Voltage (VCC): – 0.3V to 6V
- Digital Inputs / Outputs Voltage (TxD, RxD, STB): -0.3V to 6V
- CAN Bus Line Voltage: -50V to 50V
- CAN Transceiver Junction Temperature: -40°C to +170°C
- Board Temperature: -40°C to +125°C
Product Usage Instructions
Board Assembly and Configuration
The CAN(FD) Evaluation Board allows for easy evaluation of CAN transceivers in SOIC8 packages. Follow the steps below to assemble and configure the board:
- Refer to Table 1 for assembly options and configurations.
- Connect the necessary CAN bus external components according to the datasheet of the assembled CAN transceiver.
- Configure the board based on the desired settings, such as ESD protection, CAN bus termination, onboard LDO connections, and STB pin mode.
Power Supply Connection
To power the evaluation board, follow these steps:
- Ensure the battery supply voltage (Vbat) is within the recommended operating range of 6V to 28V.
- Connect the transceiver supply voltage (VCC) and digital inputs/outputs voltage (TxD, RxD, STB) within the recommended range of -0.3V to 6V.
- Connect the CAN bus line voltage within the recommended range of -50V to 50V.
Evaluation and Testing
Once the board is assembled and powered, you can proceed with the
evaluation and testing of the CAN transceiver. Follow these steps:
- Ensure all connections are properly made and components are correctly configured.
- Connect the necessary devices or systems to the CAN bus lines.
- Use appropriate testing equipment or software to send and receive CAN messages.
- Observe and analyze the performance of the CAN transceiver in your specific application setup.
Introduction
This document describes the CAN(FD) evaluation board for the onsemi family of CAN transceivers in SOIC8 package. The board provides basic connections for wide range of transceivers.
Evaluation Board Features
- One−Row Pin Header, Providing Access to All the Device Pins, Enables Easy Insertion of the Evaluation Board into a More Complex Application Setup
- On−Board 5 V LDO for VCC Supply (Can Be Disconnected)
- On−Board 3.3 V LDO for VIO Supply (Can Be Disconnected)
- Standard CAN Termination
- Position for Optional Common Mode Choke
- Position for Optional ESD Protection
List of Supported CAN Transceivers
- NCV7340
- NCV7342
- NCV7344
- NCV7349
- NCV7351
NCV7344A3V1GEVB
SCHEMATIC
ABSOLUTE MAXIMUM RATINGS
| Rating | Pins | Min. | Max. | Unit |
|---|---|---|---|---|
| Battery Supply Voltage | Vbat | −40 | 40 | V |
| Transceiver Supply Voltage | VCC, VIO (Rvcc and Rvio Not Used) | −0.3 | 6 | V |
| Digital Inputs / Outputs Voltage | TxD, RxD, STB | −0.3 | 6 | V |
| CAN Bus Line Voltage | CANH, CANL |
· NCV7340 / 42 / 49 / 51
| ****
−50
| ****
50
| V
| · NCV7344| −42| 42|
CAN Transceiver Junction Temperature| | −40| +170| °C
Board Temperature| | −40| +125| °C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected
RECOMMENDED BOARD OPERATING CONDITIONS
| Rating | Pins | Min. | Max. | Unit |
|---|---|---|---|---|
| Battery Supply Voltage | Vbat | 6 | 28 | V |
| Transceiver Supply Voltage | VCC (Rvcc Not Used) | 4.75 | 5.25 | V |
| Transceiver Supply Voltage | VIO (Rvio Not Used) | 2.8 | 5.5 | V |
| Digital Inputs / Outputs Voltage | TxD, RxD, STB | 0 | VIO | V |
| CAN Bus Line Voltage | CANH, CANL |
· NCV7340 / 42 / 49 / 51
| ****
−50
| ****
−50
| V
| · NCV7344| −42| −42|
CAN Transceiver Junction Temperature| | −40| +170| °C
Board Temperature| | −40| +125| °C
Operational Guidelines
- CAN EVB board allow easy evaluation of CAN transceivers in SOIC8 packages. It provides a connection to all the device’s pins as well as positions for all the necessary CAN bus external components.
- Configurations and assembly options are listed in Table 1. For more information please check the datasheet of the assembled CAN transceiver.
Table 1. ASSEMBLY OPTIONS AND CONFIGURATIONS
| Component | Default | Function |
|---|---|---|
| Rth, Rtl, Cst | 2x 62 R, 4.7 nF | CAN bus termination |
| ESD | none | Position for optional NUP2105 ESD protection |
| Cesdh, Cesdl | 47 pF | ESD capacitors. Should be selected per application |
needs and ESD used
Rvcc, Rvio| 0 R| Connection of on−board LDOs to VCC and VIO. If removed,
external supplies can be used.
STB_low
| ****
Open
| STB pin connection
Open = STB weak internal pull−up = Standby mode Close = STB shorted to GND = Normal mode
PCB DRAWINGS
FAQ
- Q: What is the recommended battery supply voltage for the NCV7344A3V1GEVB?
- A: The recommended battery supply voltage is between 6V and 28V.
- Q: How do I configure the STB pin mode on the evaluation board?
- A: To configure the STB pin mode, you can either leave it open for standby mode or connect it to GND for normal mode.
- Q: Where can I find more information about the assembly options and configurations?
- A: You can refer to Table 1 in the user manual for detailed information about assembly options and configurations.
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